<form action="__URL__&a=do_login" method="post" >
	<table>
		<tr><th height="30">用户名:</th><td><input name="username" id="username" type="text" /></td></tr>
		<tr><th height="30">密码:</th><td><input name="password" id="password" type="password"/></td></tr>
		<tr><td colspan="2" align="center"><button type="submit">登录</button></td></tr>
	</table>	
</form>